After discovering they have exchanged rolls of film, Wesley learns Paul is cheating on his wife while Paul learns Wesley is a psychotic killer. An intensely dangerous battle of wits follows as both men try desperately to keep their secrets. Set in the 1950s, this is a throwback to the glamorous suspense of Alfred Hitchcock like Strangers On A Train and North By Northwest, capturing the sophisticated elegance of the era right up through the shocking climax.